I've got a RoadRunner, but have not installed. Do I need a software upgrade if I use it?
If I install the RR and install my current tune, should I expect the car to run and operate exactly as it did before installation?
I have held back on installation because I haven't investigated possible problems with it yet. Words of advice about install welcome...
BTW writing on it, J1BLUE M1190 CYDU This look correct for my car?